Conference Papers
Conference Papers

Master Plan Implementation - Challenges and Lessons Learnt

19/09/2018

The rapid growth of Hamilton has brought with it significant challenges, including maintaining suitable clean water services in the future. Seven years ago, Hamilton City Council (HCC) and Mott MacDonald embarked on a joint journey to develop a comprehensive water strategy addressing current system performance issues and future shortfalls.

Conference Papers

Anaerobic Treatment Of Cream Cheese Whey

19/09/2018

ANAEROBIC TREATMENT OF CREAM CHEESE WHEY, Alzbeta Bouskova, Alistair Broughton, Chris Hearn – BPO Ltd., Ron Hamilton – Fonterra
Conference Papers

Consenting Of The North East Sub- Regional Wastewater Scheme

19/09/2018

This paper outlines some of the major drivers for the project and how they were addressed in developing the proposed scheme. These drivers include population growth, environmental constraints, short and long term effects, and the impact on the local community.
Conference Papers

Optimisation Of Membrane Bioreactor Nutrient Removal Performance – Some Practical Examples

19/09/2018

Membrane Bioreactors (MBR), are of increased interest in New Zealand, driven largely by tighter effluent consent requirements and greater reuse potential of treated effluent.
Conference Papers

Dealing with SIN: A Novel Solution

19/09/2018

This paper will present the challenges and the opportunities for an inland rural community with substantial trade waste contributors. It will discuss the risks and benefits of dealing with SIN by codigesting trade wastes with WAS to boost energy yield.
Conference Papers

Microbial Diversity At Two Geographic Locations – Developing A Database Of Species With Water Chemistry

19/09/2018

When we turn on the tap we expect clean and safe water to drink. Increasing demand on water resources for anthropogenic activities and surface contamination is putting pressure on our water resources.

Conference Papers

Kawana Stp Upgrade: Using Bim And Virtual Reality For Design, Construction And Operations

19/09/2018

This is the first project that Unitywater has commissioned that requires all designed new and retained works to be included in a BIM.
Conference Papers

Lessons Learnt From Retrofitting Existing Wastewater Catchments With Vacuum Sewer Systems Post-Earthquake

19/09/2018

During the infrastructure rebuild after the Christchurch earthquakes in 2010 and 2011 as part of the Stronger Christchurch Infrastructure Rebuild Team (SCIRT) alternative wastewater systems were considered as a resilient alternative to replace the existing gravity systems in areas that were badly damaged by the earthquake.
Conference Papers

Moving Towards Smart WWTP's Through Advanced Aeration Control

19/09/2018

This paper provides details of all aspects of the AAC trial at CBWWTP.
Conference Papers

Preventing The ‘Pong’, Whanganui’s Five Year

19/09/2018

This paper outlines in further detail the treatment plant options that were considered, selection and development of the final design, design and construction issues encountered, and finally commissioning experiences.
Conference Papers

Rigid and Flexible Pipe Design, Installation and Whole Life Cost

19/09/2018

Understanding the key differences between pipe materials and their design philosophies is important and often overlooked. Failings here can lead to long-term impacts on infrastructure and its whole-of-life cost. This paper explains some of these issues and the cost implications of them.
Conference Papers

Maida Vale And The Tale Of The Throttle Pipe - Passive-Control To Eliminate Foul Pumping

19/09/2018

A client outcome-based approach delivered an innovative, sustainable solution to flooding, while embracing safety in design at the outset.
Conference Papers

Operations optimisation at Wellington Water – innovation that lead to world- wide change

19/09/2018

Operations optimisation at Wellington Water – innovation that lead to world- wide change, Simon Bunn SUEZ Smart Solutions
Conference Papers

Smart Pressure Sewer and the Development of South West Christchurch Helen Barclay

19/09/2018

This paper outlines the South East Halswell Wastewater project and the smart pressure sewer technology. Focus is given to the key lessons learned on this project.
Conference Papers

60 Years of Migratory Bird Management on the Manukau

19/09/2018

This paper reviews the close relationship that these birds have had with the treatment plant since it was commissioned in 1960.
Conference Papers

Adding Clarity To The Murky World Of Greywater Re-Use And Risk To Human Health

19/09/2018

This study seeks to expand on previous research by assessing microbial water quality from a range of greywater sources, including greywater from both residential and commercial properties.
Conference Papers

Sand Removal: Past Industry Operation In Present Water Treatment Process

19/09/2018

This paper outlines the sand removal options considered for Waikato WTP, those implemented (in addition to the sand separation system, this also includes installation of a sand mobilisation pump in the raw water wet well), the lessons learnt and outcomes from this process.
Conference Papers

Uv Peroxide – A New Zealand Approach

19/09/2018

The paper includes a discussion of how UV peroxide was incorporated in the existing plant treatment train, and decisions on the method used for peroxide quenching.
Conference Papers

Extending ASM1 to Model a Tubular Biofilm Reactor

19/09/2018

The world’s largest tubular biofilm reactor for biological oxidation of hydrogen sulphide (H2S) in geothermal power station cooling water was successfully commissioned in NZ in 2012.
Conference Papers

Potential Impacts On Groundwater Quality Caused By Earthquake Induced Vertical Permeability Enhancement

19/09/2018

Following recent major earthquakes in New Zealand there has been concern about possible groundwater quality changes due to the infiltration of pollutants from the soil or ground surface.
Conference Papers

A Pilot Scale Evaluation of Membrane Aerated Biofilm Reactor technology for BNR Process Intensification

19/09/2018

The MABR is a promising biological nutrient removal intensification technology. In an MABR oxygen is delivered to a biofilm growing on the outside of membrane surface by diffusion through the membrane wall (Figure 1).
Conference Papers

Deep, Large Diameter CIPP Case Study

19/09/2018

Deep, Large Diameter CIPP Case Study, Chris Macey AECOM
Conference Papers

Developing A New Class Of Pathogen Surrogates For Water Applications

19/09/2018

Our research findings will help implement preventive measures to reduce drinking-waterborne infection risks. Research outcomes will promote uptake of new surrogate technology for better protection of vital freshwater resources and drinking water supplies.
Conference Papers

Fate and transport of nitrogen from wastewater irrigated to land adjacent to a sensitive harbour

19/09/2018

As part of the reconsenting of the Omaha Wastewater Treatment Plant (WWTP) land discharge system, Watercare Services Ltd commissioned a study to understand the fate and transport of nutrients and the effects on the environment.
Conference Papers

Campylobacter Survival In Groundwater: Comparison Of Two Strain Types And Two Groundwater Types

19/09/2018

Following the Campylobacter outbreak in Havelock North it was recognised that there was a lack of data on the survival of Campylobacter in groundwater.